JPH0967935A - Reinforcement arranging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve working efficiency easily and safely. SOLUTION: Circular temporary rails 3, 3 are laid on the installation floor F of a cylindrical concrete wall 1, a plurality of pairs of elevatable guide posts 13 are standingly provided on a traveling carriage 11 freely traveling on the rails 3, 3, a sliding type elevatable scaffold 16 is provided on the guide posts 13 elevatably and slidably, an elevatable hoist 17 is provided thereon, the traveling carriage 11 is run, vertical reinforcement A or horizontal reinforcement B is held with the traveling hoist 17 through a holder 20 or 26 so as to laterally move or slide, and the scaffold 16 is slided so as to perform a work for arranging the reinforcement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bar arrangement device for arranging reinforcing bars at predetermined positions when constructing a structure such as reinforced concrete or steel frame reinforced concrete.

[0002]

2. Description of the Related Art For example, in a structure such as a reinforced concrete reactor containment vessel of a nuclear power plant, the wall thickness of a cylindrical reinforced concrete wall reaches, for example, 2 m, and various pipes are radially arranged in the wall. Penetrates.

Large-diameter and long-length heavy reinforcing bars are used for these reinforcing bar structures. Conventionally, these heavy reinforcing bars are individually lifted and arranged by a crane or the like arranged separately. A worker on a temporary scaffold placed near the muscle site was manually arranging at a predetermined bar arrangement position.

[0004]

However, in the above method, obstacles such as pipes penetrating through the wall and temporary scaffolding for bar arrangement work complicate the transportation of the reinforcing bar by hanging the crane, and depending on the case, Since it is forced to suspend the rebar and move it laterally by human power, it is a laborious task for workers, and heavy work in a poor footing is dangerous.

Further, since many layers of reinforcing bars are laid out in the weight direction of the wall, it is necessary to refill the temporary scaffolding for laying work, which requires unnecessary labor and time. It was

Further, it took a lot of time to suspend the reinforcing bars one by one with a crane, and the working efficiency was extremely poor.

An object of the present invention is to provide a bar arrangement device that is easy and safe and improves work efficiency.

[0008]

According to the present invention, a traveling carriage that can travel freely on a temporary rail laid parallel to a concrete wall of a structure such as reinforced concrete or steel-framed reinforced concrete, and is erected on the traveling carriage. A pair of elevating guide posts, a slide-type elevating scaffold that is vertically movable on the elevating guide posts of these pairs, and is movable forward and backward relative to the concrete wall, and a frame that connects the tops of the elevating guide posts of the pair. The traveling hoist is provided so as to be able to traverse and move forward and backward, and a reinforcing bar holder provided in the traveling hoist.

The reinforcing bar holder is provided with a cam that holds the vertical bar and is locked by the weight of the vertical bar, and manual means for unlocking the cam is provided.

Further, the reinforcing bar holder is composed of a pair of arms provided with a recess for mounting the transverse bar.

A vertical bar is held on the reinforcing bar holder, and the running hoist is slid while the cam is locked by the cam due to the weight of the vertical bar, and the vertical bar is moved to a predetermined position to move the vertical bar on the concrete wall side. After fixing it to the receiving member, the vertical streaks are unlocked by manual means and the vertical streaks are arranged.

Further, after the horizontal hoist is placed in the recess of the paired arms of the reinforcing bar holder, the traveling hoist is slid to move the lateral bar to a predetermined position, and the horizontal bar is placed on the concrete wall side lateral bar receiver. , Lower the arm and place the horizontal streak.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, for example, circular temporary rails 3, 3 along the concrete wall 1 are laid on the installation floor F of the cylindrical reinforced concrete wall 1 of the reactor storage container. The temporary rails 3 are provided with a bar arrangement device indicated by reference numeral 10 so that the bar arrangement device can travel freely. In the figure, reference numeral A is a vertical streak, B is a horizontal streak, and 2a to 2c are pipes projecting radially outward between the two streaks A and B.

2 to 4, the bar arrangement device 10 is shown.
Includes a self-propelled carriage 11, a lifting guide post 13, a sliding lifting scaffold 16, and a pair of traveling hoists 17.

The traveling carriage 11 is formed in an arc shape whose plane shape is substantially the same diameter as the temporary rails 3 and 3, and is provided with a pair of wheels 12 driven by a traveling motor (not shown).

The lifting guide post 13 is used for the traveling carriage 1.
A pair is provided at each of the longitudinal end portions of 0, and the top portions are connected by the connecting beam 14. The opposite ends of the connecting beams 14 and 14 are connected to the frame 15 and the frame 15, respectively.
They are connected at 15.

The slide type lifting scaffold 16 is provided on two pairs of lifting guide posts 13 and 13 so as to be able to move up and down, and is moved up and down by an unillustrated lifting motor. It is designed to be advanced.

The traveling hoist 17 includes the frame 1
A frame-shaped sub-frame 18 which can traverse 5 and 15 is slidably provided by slide frames 19 and 19.

FIG. 5 shows the vertical bar holder 20. The vertical bar holder 20 is provided with a frame-shaped frame 21 suspended from the hook 17a of the traveling hoist 17. The frame 21 is provided with a holding mechanism 22 that holds three vertical stripes A in the illustrated example. The holding mechanism 22 includes a guide groove 23 for guiding the vertical stripe A,
One end abuts on the vertical streak A guided by the guide groove 23 and locks the vertical streak A by the weight of the vertical streak A, and a lock releasing rope which is a manual means attached to the other end of the cam 24. And 25 are provided.

FIG. 6 shows the transverse bar holder 26. The holder 26 is provided with an arc-shaped frame 27 suspended from the hook 17a. Its frame 2
Arms 28 are vertically provided at both ends of 7, and recesses 29 for mounting the three horizontal stripes B are formed in these arms 28, 28, respectively.

Next, the mode of the bar arrangement will be described.

When arranging, the reinforcing bar bundle of the longitudinal bar A or the lateral bar B is carried in from the outside by a separate crane or the like in advance,
It is temporarily placed on the slide-type lifting scaffold 16.

After the reinforcing bar bundle is loaded, the bar arrangement device 10 is moved and stopped at a predetermined bar arrangement position.

Next, the worker on the slide-type lifting scaffold 16 disassembles the reinforcing bar bundle, sets, for example, three vertical bars A on the vertical bar holder 20, suspends it with a traveling hoist, and traverses the subframe 18. Then, the slide frame 19 is slid to transfer the vertical stripe A to a predetermined position.

Next, the slide type lifting scaffold 16 is moved up and down and moved to a position where a worker can easily work. Therefore, after the vertical streak A is fixed to the unillustrated vertical streak receiver on the concrete wall 1 side, the lock 25 is pulled to unlock the vertical streak A. Also, the horizontal line B
Is placed in the concave portion 28 of the horizontal stirrup holder 26, and after being placed in a horizontal stirrup holder (not shown) on the concrete wall 1 side, the horizontal stirrup holder 26 is lowered to release the horizontal stirrup B.

The procedure described above is repeated, and the bar arrangement device 10 is further moved to perform bar arrangement work as required.

After all the reinforcing bars temporarily placed on the slide-type lifting scaffolding 16 have been laid out, the reinforcing bar bundle is again loaded from the outside and temporarily placed to perform the above-mentioned work.

As described above, the reinforcing bar can be easily and safely transferred by the reinforcing bar apparatus, and by sliding the scaffold 16, the reinforcing bar work can be easily carried out in a deep pocket.

[0030]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, the work of arranging can be performed easily and safely, and the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a concrete wall of a reactor containment vessel in which reinforcement work is performed by a reinforcement device embodying the present invention.

FIG. 2 is a front view showing an embodiment of the present invention.

FIG. 3 is a top view of FIG.

FIG. 4 is a sectional view taken along the line AA of FIG. 3;

FIG. 5 is a perspective view showing a vertical line holder.

FIG. 6 is a perspective view showing a horizontal bar holder.

[Explanation of symbols]

 A ... Vertical line B ... Horizontal line F ... Installation floor 1 ... Concrete wall 2a to 2c ... Piping 3 ... Temporary rail 10 ... Reinforcing device 11 ... Traveling vehicle 12・ ・ ・ Wheels 13 ・ ・ ・ Elevating guide posts 14 ・ ・ ・ Connecting beams 15 ・ ・ ・ Frames 16 ・ ・ ・ Sliding elevating scaffolds 17 ・ ・ ・ Running hoists 17 a ・ ・ ・ Hooks 18 ・ ・ ・ Sub frames 19・ ・ ・ Slide frame 20 ・ ・ ・ Longitudinal line retainer 21 ・ ・ ・ Frame 22 ・ ・ ・ Holding mechanism 23 ・ ・ ・ Guide groove 24 ・ ・ ・ Cam 25 ・ ・ ・ Lock release rope 26 ・ ・ ・ Horizontal line retainer 27 ... Frame 28 ... Arm 29 ... Recess

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryo Takagi Yasushi Yasushi, Niigata City, Niigata Prefecture 1-3-4 Kayo Construction Hokuriku Branch Co., Ltd.

Claims (3)

[Claims] 1. A traveling carriage that can travel freely on a temporary rail laid parallel to a concrete wall of a structure such as reinforced concrete or steel-framed reinforced concrete, and a double pair of elevating guide posts erected on the traveling carriage. A slide-type elevating scaffold that is movable up and down on a pair of elevating guide posts and can move forward and backward with respect to the concrete wall, and a frame that connects the tops of the double pairs of elevating guide posts to traverse and move forward and backward. Type hoist and a reinforcing bar holder provided on the traveling type hoist. 2. The bar arrangement device according to claim 1, wherein the reinforcing bar holder includes a cam that holds the vertical bar and is locked by the weight of the vertical bar, and manual means for unlocking the cam is provided. . 3. The bar arrangement device according to claim 1, wherein the reinforcing bar holder is composed of a pair of arms having a recess for mounting the transverse bar.